kindt



-2' Sheets-Sheet 1.

' G. F. VKINDT. Bolt Meohafiism for Looking Ranges of Cells.

Patented Feb. 17,1880.

W a F x 2 Sheets-Sheet, 2.

G. P. KINDT." 'Bolt' Mechanism for Looking Ranges of Cells.

Patented Feb. 17, 1880. fifio UNITED STATES PATENT Fries.

GUSTAF F. KINDT, MONTREAL, QUEBEC, CANADA.

BOLT MECHANTISM FOR LOCKING RANGES F CELLS. i

SPECIFICATION forming part of Letters Patent No. 224,546, dated February 17, 1880.

Application filed September 6, 1879.

of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented certain new and useful mechanism forlockingand unlocking simultaneously orinfollowing is a full, clear, and exact 'description of the same.

My invention, which will be found of use in all cases. where a number of boxes,:compartmerits, or chambers are ranged side by side, is, however, specially designed with reference tothe ranges of cells in the corridors of prisons or lunatic asylums, or dens in menageries, as it enables the warder or keeper to open any one cell withoutaffording egress from the others ,bythe same mechanism by which all the cells ca-n at will be simultaneously locked and unlocked, the means for operating such mechanism beingoutside the corrider on which the cells face, or at one end of it.

My invention may be described as consisting in the arrangement,preferably above the cell-doors, of two bars sliding independently in proper bearers, and holding. between them theends of the vertical bars or rods, one to i each cell, by which the bolts or latches securj dependently-slidingbars are formed notches ing the doors are held in place. In these inor openings, which, when brought together over any one or all of the vertical bars, release it or them from the hold andallow the door to open by a spring or any other usual device. On the end of each of these sliding. bars is formed or secured a half-round bar on which A a half-spiral thread is out, the two forming a 1 full screw, and each half being operated independently by a wheel or disk, the rotation of which will thus give to the bars the independent lateral movement required, each wheel controlling or operating one bar only.

For full comprehension, however, of my invention, reference must be had to the annexed drawings, in which similar letters indicate like parts, and where Figure 1 is aview of part of a range of cells to which my invention is applied, showing one open. Fig. 2 is an end view, showing operating-disks, &c. Fig. 3 is a part view of sliding bars and vertical rod, showing modification.

of construction. Fig. 7 is a view of end of screw. Fig. 8 is a sectional top view of screw, eccentric cylinder, and disks. Fig. 9 is asection on line as m, Fig. 8. Fig. 10 is a sectional elevation, showing side view of screw.

A and B are the sliding bars, which form the principal feature of my invention, these being carried in suitable brackets O, secured, by preference, in the intervals between the cells and abovethe doors, and being, if desired, provided with rollers to facilitate the passage of the bars A B, which may be in section either of the forms shown in Figs. 4 and 5 or any other which will allow them to pass freely either side of thenecks of the vertical bars D, D,- and D and at the same time hold the several heads d, d, and d firmly in place, preventing them from being moved in either direction vertically, preferably by collars or shoulders formed on them, and thus securing the cell-doors, as these vertical, bolts or bars require to be lifted in order to release the bolt,

lever, or other suitable'devieefastenin g the cell-. doors E E E, &c., which may be of any ordinaryconstruction, and are usually numbered.

To release any oneof these bolts, or all at i once, the barsA'and B'are slid along independently, bymeaus to be hereinafter described, until the notches or openings formed in both the bars for the purpose coincide over the special rod (in the drawings shown as D) which is to be released, the warder or keeper, to 'efl'ect this,only having to bring the pointers A B together, as shown, over the mark in the gage F (arranged at the end of the corridor) corresponding with that on the cell-door to be opened.

The notches or openings formed in the bar A are respectively, as shown, lettered a a, a a, and a a and are arranged in pairs, those in the bar B being similar.

It will, of course, be impossible to give the exact distance apart and arrangement of these notches or openings, as they must be laid out to suit the building in which they are put up, and vary according to the distance from center to center of the cells, and the length of the gage, irrespectively of the number of places into which it is divided, having to conform to the space between the first cell and the end of the corridor; but I may say that the distance between the paired notches, such as a a, increases in a constant ratio the farther they are from the operating mechanism, which is now to be described.

Upon the end of each of the bars A and B is preferably secured, as shown in Figs. 3 and 7, a half-round bar, (marked, respectively, G andH,) upon which is cut a half-box screwthread, so formed that when the two halves are brought together they make one perfect screw. Upon this double screw, and secured to the wall by a bracket, 1, is arranged a double eccentric cylinder, K, constructed as shown more particularly in Figs. 8, 9, and 10, and arranged to cover up alternately each one of the semi screws G and H, which move freely through it. It is k being collars or shoulders formed on it, so as to hold in place andgive a fulcrum to the disks L M, the disk L working the screw Gr, which is threaded into it, and the disk M the screw H, similarly threaded, the rotation of these disks L M thus imparting to the bars A and B, respectively, independent motion. These disks or wheels may be made in any way found most suitable for working them, and, if desired, have inserted in them bushings threaded to suit the semi'screws.

When, by the adjustment of the bars, all the cells in the range have been closed, they may be still further secured by means of a lock arranged as shown at N in Fig. 2, the bolt of which passes through the inner semi-screwed bar and into the outer one. The key of this look will be the only one required in the buildmg.

The operation of my invention will be so clearly understood from the drawings and theforegoing that it will be unnecessary to make any further allusion to it. I would, however, remark that this arrangement of the independently-slidin g bars keeps the cells securely fastsecuring the doors of these cells or dens, all

that is required being that the device used shall necessitate the movement up or down of the vertical rod described, and the precise construction of these vertical rods may be varied to suit differing 1'equiremcntsas, for instance, when the cell-doors are sunk in the wall.

Any number of cells in a range may be fitted with the herein-described invention.

Other mechanism, such as racks and pinions, levers, 820., may be used to'give the sliding bars their independent movement, although the device described will be found very effective for the purpose, and is applicable not only in the present instance, but in all cases where independent adjustment is required.

Having thus described my invention, what I claim is as follows:

1. The bars A B, moved independently of each other, and operating to lock and unlock either any single cell in a range or all simultaneously, in combination with the vertical bars, the heads of which are held by the sliding bars, substantially as herein set forth.

2. The combination, to produce independent reciprocating motion, of two half-round bars having spiral screw-thread worked on sam'e,and a double eccentric cylinder, through which said half-round bars passfreely, said cylinder bein g cut away alternately on either side, so as to expose each bar, respectively, to the action of a disk or wheel threaded thereon, all sub- 4 stantially' as herein set forth.

G. F. KINDT.

Witnesses V ERAS. HY. REYNOLDS, R. ARTHUR KELLOND. 

